Water system
Cedarville University
EPA ID OH2903612 · Greene County · 4,000 people served
Cedarville University treats its own water from Groundwater wells (8 wells).
The system's record
- Active wells
- 8
- Serves
- 4,000 people · Greene County
- EPA ID
- OH2903612
About this area's water

Did you know
- The system serves roughly 4,000 people through only 49 service connections, because a single connection can serve an entire residence hall or academic building.
- In 2025 the plant treated 47.65 million gallons of water, averaging 130,656 gallons a day.
- The campus wells tap two different bedrock aquifers of the Sub-Lockport Group, one upper and one lower, rather than a single sand-and-gravel buried valley like most of western Ohio.
- One wellhead, PW-09, was physically raised four feet in 2025, partly to protect it and partly to clear the way for campus expansion east of State Route 72.
- Unlike a municipality, the water system holds no regular public meetings; the CCR invites comment by telephone to the Operations Center instead.
Source: cuwebstoragelibrary.blob.core.windows.netdata.epa.gov
History4
- 2004EPA SDWIS records Cedarville University wells 0008 and 0009 deactivated on September 10, 2004; a purchased connection from Greene County - Cedarville was deactivated July 1, 2005.
- 2025A 4-inch line serving the Apple Resource Center and Patterson Hall was cut during construction; the line was isolated, pressure was held in the rest of the distribution system, and a boil advisory…
- 2025Wells PW-09, PW-11 and PW-13 were rehabilitated (cleaning, new pumps and wiring); the PW-09 wellhead was raised four feet to protect the groundwater supply and accommodate planned campus expansion…
- 2025The system failed to collect a required third-quarter arsenic sample, a monitoring violation under Ohio EPA rules. A sample was collected November 11, 2025 and results were within standards; EPA…
Source: cuwebstoragelibrary.blob.core.windows.netdata.epa.govdata.epa.gov
Treatment & pressure
How it is treated
Cedarville University treats its own groundwater. Seven supply wells east and north of the intramural fields, east of State Route 72, draw from both the upper and lower bedrock aquifers of the Sub-Lockport Group, in the Till Plains section of the Central Lowlands. Raw water goes to a campus…
Source: cuwebstoragelibrary.blob.core.windows.netcedarville.edudata.epa.gov
Water pressure
Not published. Neither the university's public water system page nor its 2025 CCR states a system pressure; the CCR only notes that pressure was maintained in the rest of the…
Source: cuwebstoragelibrary.blob.core.windows.netcedarville.edu
What it costs
No rate schedule exists. This is a privately owned community system serving the university's own campus through 49 service connections; water is not billed to the public on a…
Source: data.epa.govcedarville.edu
Water quality & impurities10
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Total chlorine Disinfectant residual. | 1.74 (range… ppm | MRDL 4 | 2025 |
| Total trihalomethanes (TTHM) | 16 (range… ppb | MCL 80 | 2025 |
| Haloacetic acids (HAA5) | 3.7 (range… ppb | MCL 60 | 2025 |
| Arsenic The CCR table labels this row 'ppm', which is an apparent unit typo: the stated MCL of 10 is the ppb arsenic standard.… | 1 (range 0-1) ppb | MCL 10 | 2025 |
| Barium | 0.0328 ppm | MCL 2 | 2023 |
| Cyanide The CCR prints the range as '1-Jan', a spreadsheet date-conversion artifact of '1-1'. | 1 ppb | MCL 200 | 2023 |
| Fluoride | 0.3 ppm | MCL 4 | 2023 |
| Mercury | 0.2 ppb | MCL 2 | 2023 |
| Lead (90th percentile) 0 of 21 samples above the action level. | 3.39 ppb | Action level 15 | 2025 |
| Copper (90th percentile) 0 of 21 samples above the action level. | 0.2227 ppm | Action level 1.3 | 2025 |
Source: cuwebstoragelibrary.blob.core.windows.net
EPA compliance record
Lead at the tap: 90th-percentile result 3.4 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
3 violations of any kind logged since 2020, 3 of them paperwork (monitoring, reporting, public notice or consumer report).
Projects & plans10
Recent and current work
- Well PW-09 rehabilitation (cleaning, new pump and electrical wiring) · 2025 · completed
- Well PW-13 rehabilitation (cleaning, pump/wiring/piping reinstalled) · 2025 · completed
- Well PW-11 new pump and wiring after pump failure · 2025 · completed
- Replacement of flush valves and wellhead sample ports at PW-09 through PW-13 · 2025 · completed
- PW-09 wellhead raised four feet for contamination protection and planned campus expansion east of SR 72 · 2025 · completed
- Phase I conceptual site survey with hydrology, geology and treatment consultants, to guide wellfield planning · 2025 · completed
- Iron/manganese filtration upgrade (two new filters), pump house re-piping, new high-service pump, and a new… · completed
Described by the university as upgrades over the last ten years; no individual completion dates or costs are published.
Source: cuwebstoragelibrary.blob.core.windows.netcedarville.edu
Planned or needed
- Water tower cleaning and inspection · 2026 · planned
Scheduled for spring 2026. - Evaluation of additional elevated water storage · planned
Described as in the assessment phase, reviewing options and long-term needs. No cost or date published. - Future wellfield expansion and improved use of existing groundwater resources · proposed
To be guided by the completed Phase I conceptual site survey. No cost or schedule published.
Supply stress
The aquifer supplying the East Wellfield is rated by Ohio EPA as having moderate susceptibility to contamination, based on moderate aquifer sensitivity and nearby potential contaminant sources; a Wellhead Protection Plan is approved and in force. The forward pressure is capacity for growth rather than scarcity: the university completed a…
Sewers
Sanitary
Not published. The university's own NPDES wastewater permit (OH0085502) is listed as Terminated in EPA ECHO, and neither the CCR nor the operations page states who now handles campus wastewater. The Village of Cedarville operates the Cedarville Water Resource Reclamation Facility (NPDES OH0020010) nearby, but no source confirms the…
Storm
Not published.
Source: echodata.epa.govdata.epa.gov
Sourcesverified
Compiled from the utility's own reports and public records, then independently re-checked against primary sources.
Main supplier in 1 ZIP code
Serves
Main water supplier in 1 ZIP code
- 45314 · Cedarville56% of residents
Population-weighted resident shares; a ZIP code can have more than one system on record. Recomputed from each ZIP's own system list, not from the map's cached footprint.
Buys from · Sells to
Cedarville University does not buy water from another system on record; it treats its own source water.
No other system is on record buying water from Cedarville University.
Photograph
On the map
Show this system's territory on the map — 1 ZIP code in all.
Sources
U.S. EPA SDWIS and Community Water System Service Area Boundaries (v3, 2026), Ohio EPA primacy data, 2020 census blocks: the system serving most residents, traced through purchases to the treating utility; Ohio EPA 2023 Sewer and Water Rate Survey (Ohio State, May 2025) for household bills; Ohio EPA DEFA loan awards since 2016 for the loans paragraph · EPA SDWIS · EPA service area boundaries · Ohio EPA drinking water · Ohio EPA rate survey
Notable facts: cuwebstoragelibrary.blob.core.windows.net, data.epa.gov
History: cuwebstoragelibrary.blob.core.windows.net, data.epa.gov, data.epa.gov
Water quality: cuwebstoragelibrary.blob.core.windows.net
Planned work: cuwebstoragelibrary.blob.core.windows.net
Water pressure: cuwebstoragelibrary.blob.core.windows.net, cedarville.edu
Capital projects: cuwebstoragelibrary.blob.core.windows.net, cedarville.edu
Rates: data.epa.gov, cedarville.edu
Sewers: echodata.epa.gov, data.epa.gov
Treatment: cuwebstoragelibrary.blob.core.windows.net, cedarville.edu, data.epa.gov
Supply stress: cuwebstoragelibrary.blob.core.windows.net